All these Hamas-induced idiots are terrified of becoming impure by contact with pork. So load up the tanks of the water canons with pig guts and spray the whole border area. (Or just use dye and tell the idiots that it's pig guts.)
Would you want to be covered in pig blood and guts? It would defile your house and car, all your clothes, etc. Get a forest-fire fighting aerial tanker and fill it with pig guts and drop the whole load over the protesters. Who knows, maybe they'll develop a taste for pork and create a whole new industry in Gaza!